This name is a synonym of Callirhoe triangulata (Leavenw.) A.Gray.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50128247) with original publication details: Amer. J. Sci. Arts 7: 62 1824.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:280317-2.
This name was in version 1 of The Plant List, record tro-50128247, and has not been changed.